61165025152 has 256 divisors, whose sum is σ = 161676103680. Its totient is φ = 22314516480.

The previous prime is 61165025147. The next prime is 61165025227. The reversal of 61165025152 is 25152056116.

61165025152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37363278 + ... + 37364914.

It is an arithmetic number, because the mean of its divisors is an integer number (631547280).

Almost surely, 2^61165025152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61165025152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80838051840).

61165025152 is an abundant number, since it is smaller than the sum of its proper divisors (100511078528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61165025152 is a wasteful number, since it uses less digits than its factorization.

61165025152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 61165025152 in words is "sixty-one billion, one hundred sixty-five million, twenty-five thousand, one hundred fifty-two".